Refrigerator



E. l. LONG.

REFRIGERATOB.

APPLICATION. FILED 1AN.6.1919.

i HHIIIIIIIII I Patented J une 17, 1919.

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EDWARD I. LONG, OF MAYER, ARIZONA.

REFRIGERATOR.

Speccation of Letters Patent.

Patented June 1'?, 1919..

Application filed January 6, 1919. Serial No. 269,896.

T all whom 'it may concern.'

Be it known that I, EDWARD I. LONG, a

4.citizen of the United States, residing at Mayer, in the county of Yavapai and Ptate of Arizona, have invented certain new and `useful Improvements in Refrigerators; and I do declare the following to be a full, clear, and exact description` of the invention, such as will enable others skilled in the art to 4which it appertains to make and use the same.

My inventionhas for its object to provide a simple and rather inexpensive refrigerator or cooling chamber designed principally for domestic use Aand employing the lcooling effect of evaporating moisture, as its refrigerating means. I am aware that numerous devices have heretofore been provided operating on this general principle, but my principalvimprevement resides in the novel wall construction and means for directing a current of air along both sides of a moist slab in the wall, and for discharging the air thus cooled into the refrigerating chamber, from which it may escape through a vent.

A further object of the invention is to provide an arrangement of tubes and drip cocks for moistening the slab or slabs, so disposed as to act 'also as a railing around the edge of the refrigerator top, whereby to prevent articles set thereon from falling therefrom.

With the foregoing objects in view, the invention resides in the novel features of construction hereinafter fully described and claimed, reference being made to the accompanying drawing.

Figure 1 is a front elevation partly in section.

Fig. 2 is an end elevation.

Fig. 3 is a top view partly in horizontal section.

Fig. 4 is a horizontal section showinga different shape of casing in which one similarly shaped slab is employed, rather than a number of slabs as in the views before described.

In Figs. 1 to 3 of the drawing, a rectangular form of refrigerator is shown constructed in accordance with the invention, while Fig. 4 discloses a cylindrical type of refrigerator to which the improved features are equally well adapted.

The numerals 1, 2, 3 and 4, represent the,

four sides of the refrigerator wall in Figs. 1, 2 and 3; 5 designates the top of the casing; 6 has reference to a drip pan forming the bottom thereof; and 7 has reference te any suitable door for giving access to the interior Vof the casing, which may be provided with appropriate shelves or racks 8.

The adjacent edges of the'sides 1, 2, 3 and l are suitably secured in any preferred manner to angle iron corner posts 9 which may be provided with casters 10, and all of said sides are of hollow construction, consisting of spaced inner and outer sheet metal plates 11 and 12, respectively. Between the plates 11 and 12 and spaced downwardly from the upper ends thereof, is a slab 13 of cement or other appropriate absorbent material, one slab being provided for each side of the casing. Any preferred means may be provided for spacing the sides of the slab 13 from the plates 11 and 12, sufficiently to permit the' travel of air along said sides of the slabs, but for illustrative purposes I have shown restricted portions of the plates punched inwardly at 14 for this purpose.

[i plurality of drip cocks 15 pass through the upper ends of the casing sides and depend from a continuous distributing tube 16 extending around the edge of the refrigerator top. Water is supplied to the tube 16 from a water tank 17 mounted on top of the refrigerator, by means of a valved tube 18 leading from said tank. By opening the valve in the tube 18, the cocks 15 may be supplied with water so that such water in dripping from the cocks will meisten the slabs 13. Air is admitted into the hollow sides through inlet openings 19 in the lower ends thereof, this air traveling upwardly along the outer sides of the moist slabs, then over the upper ends of said slabs, downwardly along their inner sides, and into the refrigerator chamber through air outlet openings 2O formed in the lower ends of the plates 11. In thus passing over the moist slabs, considerable evaporation takes place and thus the air is chilled so that the contents of the refrigerator will be main'9 tained at a low temperature. The air may escape through vents 21 with which the refrigerator top 5 is provided, and it is intended that a continuous circulation of air shall take place along the paths above mentioned, as indicated by arrows in Fig. 1.

In addition to constructing the device of polysided shape, it may well be made in cylindrical form as depicted in Fig. 4:, in which case a one-piece slab 13 might well be interposed between the inner and outer froin the details shown and described, they inay well be followed. It is tobe understood, however, that within the scope of the invention as claiined, considerable latitude is allowed for mak-ing such ininor changes as occasion inay dictate.

I claiin:

l. In a refrigerator, a casing having a hollow side wall, an absorbent slab in said wall spaced from the sides and upper end thereof, and inea-ns for inoistening said slab, the lower end of the outer side of said wall having an air inlet, the lower end of the inner side of said wall having an air outlet into the casing, and said casing having a vent in its upper end, whereby air will enter said hollow wall, pass upwardly along the outer side of the inoist slab, then over said slab, downwardly along the inner side of the latter, into the casing, and from the latter through said vent.

2. In a refrigerator, a casing having a hollow side wall, an absorbent slab in said wall spaced from the sides and upper end thereof, a water tank mounted on the upper end of said casing, a water outlet tube leading from said tank, a water distributing tube into which said outlet tube discharges, and drip cocks depending from said distributing tube through the upper end of said wall for delivering water to meisten said slab, the lower end of the outer side of said wall havan air inlet, the lower end of the inner side of said wall having an air outlet into the casing, and the upper end of the latter having a vent, whereby air will enter said hollow wall, pass upwardly along the :outer side of the inoist slab, then over said slab, downwardly along the inner side of the latter, into the casing, and from the latter through said vent.

iny hand.

EDWARD I. LONG.

Copies of this patent may be obtained for ve cents each, by addressing `the Gommissionerof Patents, Washington, D. C. 

